{"id":36209,"date":"2026-08-10T19:04:13","date_gmt":"2026-08-10T19:04:13","guid":{"rendered":"https:\/\/kordiaxperformance.com.sa\/?post_type=product&#038;p=36209"},"modified":"2026-08-23T13:14:19","modified_gmt":"2026-08-23T13:14:19","slug":"%d9%86%d9%88%d8%a7%d8%a8%d8%b6-%d9%88%d9%85%d9%83%d9%88%d9%86%d8%a7%d8%aa-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85%d8%a7%d8%aa-cam-motion-660-valve-spring-kit-for-early-5-7-6-1-gen-3-hemi","status":"publish","type":"product","link":"https:\/\/kordiaxperformance.com.sa\/en\/product\/%d9%86%d9%88%d8%a7%d8%a8%d8%b6-%d9%88%d9%85%d9%83%d9%88%d9%86%d8%a7%d8%aa-%d8%a7%d9%84%d8%b5%d9%85%d8%a7%d9%85%d8%a7%d8%aa-cam-motion-660-valve-spring-kit-for-early-5-7-6-1-gen-3-hemi\/","title":{"rendered":".660\" Valve Spring Kit for early 5.7 & 6.1 Gen 3 Hemi"},"content":{"rendered":"<p>Product Description .660&#8243; Valve Spring Kit (PSI 1516 or PAC1276) for Early Gen 3 Hemi 5.7 &amp; 6.1 engines. When using this kit, you will re-use your existing OEM stock valve spring retainers and valve locks. This kit includes: 1 set of 16 Premium .660&#8243; Single Beehive Valve Springs (1.290 OD 150 lbs @ 1.800&#8243; \/ 420 lbs @ 1.140) 1 set of 8 1.250 OD;.875 ID;.060 Thickness Intake Valve Spring Shims 1 set of 8 1.250 OD;.875 ID;.030 Thickness Intake Valve Springs Shims 1 set of 16 Valve Spring Locator\/Seats 1 set of 16 Valve Stem Seals SPRING SPECS: 150 lbs @ 1.800&#8243; 420 lbs @ 1.140&#8243; Coil Bind @ 1.080\u201d *NOTE : This kit uses a .090\u201d shims under the intake valve spring to achieve proper valve spring installed height. No shim is needed under the exhaust valve springs. **NOTE : On early 5.7 and 6.1 Gen 3 Hemi cylinder heads, do not exceed .600\u201d intake valve lift and\/or .580\u201d exhaust valve lift unless you machine the valve guides for the needed additional clearance.<\/p><\/div>","protected":false},"excerpt":{"rendered":"Product Description .660\" Valve Spring Kit (PSI 1516 or PAC1276) for Early Gen 3 Hemi 5.7 & 6.1 engines. When using this kit, you will re-use your existing&hellip;","protected":false},"featured_media":36981,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[242],"product_cat":[243,248],"product_tag":[],"class_list":["post-36209","product","type-product","status-publish","has-post-thumbnail","product_brand-cam-motion","product_cat-cam-motion","product_cat-valve-spring-kits-components","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"_links":{"self":[{"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product\/36209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/comments?post=36209"}],"version-history":[{"count":3,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product\/36209\/revisions"}],"predecessor-version":[{"id":40890,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product\/36209\/revisions\/40890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/media\/36981"}],"wp:attachment":[{"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/media?parent=36209"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product_brand?post=36209"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product_cat?post=36209"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/kordiaxperformance.com.sa\/en\/wp-json\/wp\/v2\/product_tag?post=36209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}